I'm not sure I can even remember--I got them for Christmas a couple years ago, and while I liked his pseudo-Gnosticism in the first two books, I think it's something about the really obvious way in which god turned out to be the bad guy, or something like that. It was my religion geek thing--I have very high standards for people playing with religious themes, but I don't actually quite remember how the books end! And I think I loaned them all to someone and never got them back, so I can't reread.